<s>
In	O
computing	O
,	O
Oracle	B-Application
Advanced	I-Application
Queuing	I-Application
(	O
AQ	O
)	O
is	O
a	O
sort	O
of	O
message-oriented	B-Application
middleware	I-Application
developed	O
by	O
Oracle	B-Application
Corporation	I-Application
and	O
integrated	O
into	O
its	O
Oracle	B-General_Concept
database	I-General_Concept
.	O
</s>
<s>
AQ	O
uses	O
database	O
structures	O
as	O
a	O
repository	O
for	O
asynchronous	O
queuing	B-Application
as	O
an	O
element	O
in	O
various	O
Oracle-oriented	O
and	O
heterogeneous	O
operations	O
.	O
</s>
<s>
Oracle	B-General_Concept
features	O
utilising	O
Advanced	O
Queuing	B-Application
include	O
:	O
</s>
<s>
In	O
Oracle	B-Application
Data	I-Application
Guard	I-Application
primary	O
databases	O
the	O
queue	B-Application
monitor	O
process	O
(	O
often	O
running	O
as	O
qmn0	O
)	O
interacts	O
with	O
AQ	O
.	O
</s>
<s>
As	O
of	O
Oracle	B-General_Concept
release	O
9.2	O
,	O
AQ	O
comes	O
bundled	O
with	O
Standard	O
Edition	O
and	O
Enterprise	O
Edition	O
at	O
no	O
extra	O
cost	O
.	O
</s>
<s>
As	O
of	O
Oracle	B-General_Concept
release	O
10.1	O
,	O
AQ	O
is	O
integrated	O
into	O
Oracle	B-Application
Streams	I-Application
,	O
and	O
is	O
called	O
"	O
Oracle	B-Application
Streams	I-Application
AQ	O
"	O
.	O
</s>
<s>
As	O
of	O
Oracle	B-General_Concept
release	O
12.1	O
,	O
Oracle	B-Application
Streams	I-Application
is	O
deprecated	O
and	O
AQ	O
is	O
again	O
named	O
just	O
"	O
Oracle	B-Application
AQ	I-Application
"	O
.	O
</s>
<s>
Oracle	B-Application
AQ	I-Application
is	O
used	O
as	O
the	O
internal	O
Java	B-Language
Message	I-Language
Service	I-Language
provider	O
in	O
the	O
Oracle	B-Application
Enterprise	I-Application
Service	I-Application
Bus	I-Application
.	O
</s>
<s>
In	O
addition	O
to	O
asynchronous	O
message	O
exchanges	O
(	O
point-to-point	O
and	O
publish	B-Operating_System
–	I-Operating_System
subscribe	I-Operating_System
)	O
,	O
Oracle	B-Application
AQ	I-Application
can	O
also	O
perform	O
message	O
transformation	O
via	O
SQL	O
functions	O
.	O
</s>
<s>
Oracle	B-Application
AQ	I-Application
is	O
available	O
in	O
all	O
editions	O
of	O
Oracle	B-General_Concept
database	I-General_Concept
,	O
including	O
XE	O
.	O
</s>
